Plate kinematics and deformation status of the Antarctic Peninsula based on GPS
| Autor: | Hans-Werner Schenke, Wolfgang Niemeier, J. Ihde, Hubert Miller, Axel Rülke, Reinhard Dietrich, Günter Seeber, K. Lindner |
|---|---|
| Rok vydání: | 2004 |
| Předmět: |
Global and Planetary Change
International Terrestrial Reference System geography geography.geographical_feature_category 010504 meteorology & atmospheric sciences business.industry Geodetic datum Kinematics Deformation (meteorology) 010502 geochemistry & geophysics Oceanography Geodesy 01 natural sciences Geologic time scale Peninsula Global Positioning System business Terrestrial reference frame Geology 0105 earth and related environmental sciences |
| Zdroj: | Global and Planetary Change. 42:313-321 |
| ISSN: | 0921-8181 |
| DOI: | 10.1016/j.gloplacha.2003.12.003 |
| Popis: | Antarctic GPS data from more than 20 stations were reanalyzed using the Bernese GPS Software, version 4.2, to provide a regional densification solution for the International Terrestrial Reference Frame (ITRF) 2000. In addition to the ITRF Antarctic results, two regional solutions with different strategies of the geodetic datum realization are analyzed. The analyses indicate that relative motion between the Antarctic Peninsula and East Antarctica is no larger than 1–2 mm/year, confirming reconstructions suggesting minimal amounts of relative motion between East and West Antarctica in recent geological time. The residual deformation signals are relatively small and provide constraints on models of postglacial rebound. They amount to 1–2 mm/year in the horizontal. Uplift rates are much less precisely determined, but uplift of nearly 10 mm/year in the Northern Antarctic Peninsula is probably significant. Uplift rates elsewhere in the Antarctic Peninsula are smaller. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|
Full Text from ScienceDirect